package com.project.interceptor;

import com.project.common.UserHolder;
import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class LoginInterceptor implements HandlerInterceptor {




    public LoginInterceptor() {
    }



    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        //判断是否需要拦截，信息可以从ThreadLocal里获取
        if(UserHolder.getUser()==null){
            response.setStatus(401);
            return false;
        }

        //有用户，放行
        return true;
    }



}
